When deploying a site to Laravel, an error pops up, how to fix it?

Question

Laravel

Deployed the site (CMS on Laravel samopis), Gets an
error:
* Get an item at a given offset.
*
* @param mixed $key
* return mixed
*/
public function offsetGet($key)
{
return $this->items[$key];
}
Problem with keys
myglobalstage.com/category/tap

Answer 1

He speaks in plain language: there is no such key in the array. Use dd or dump